MTL - Instead of Checking In Regularly: I Hide And Cultivate In The Monster-quelling Tower And Become Invincible - Chapter 15 0 times understanding

[Ding!][Cashback System Activation Requirement Met!][System Binding In Progress...!][System Successfully Linked!][Spent $1,000. 10x Critical Hit. Earned $10,000. The money has been transferred to account XXX-XXX-XXX][Spent at least $1,000 on a beautiful lady. Received 1 lottery ticket. Do you want to use it?][YES][NO]Kyle was a man that has never had any luck in life and he was on the verge of ending it all after being fired from his minimum wage job due to a customer's complaint which turned out to be a lie but due to the customer being an attractive lady, no one believed Kyle.To make matters worse, he had to pay for the damages that was caused by the customer.Beautiful people, they had it easy, didn't they?This was his last step and he knew that he wouldn't see tomorrow as he searched for a river to throw himself in.He thought his mind finally broke as there was no explanation for the Cyan Screen that popped up as he clicked the [YES] button.[You have drawn Charm!][Charm: There is nothing the user can't charm his way out of or into! The universe has blessed you with charisma!]“Hahaha! I must have lost my marbles...” Kyle muttered to himself but his phone soon rang out to show that he had a notification.And to his surprise, he saw $10,000 sitting in his account and his jaw dropped.“THIS IS FOR REAL!!!”

Seven billion humans living on the Earth time-traveled together after they had woken up one morning. They all heard a synthesized female voice.

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.